53 lines
1.5 KiB
Python
Executable File
53 lines
1.5 KiB
Python
Executable File
from netCDF4 import Dataset
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import numpy as np
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from numpy import ma
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import argparse
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import matplotlib.pyplot as plt
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parser = argparse.ArgumentParser()
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parser.add_argument("-f" , metavar='file_name' , help="names of input files" , type=str , nargs="+", required=True )
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parser.add_argument("-v" , metavar='var_name' , help="variable list" , type=str , nargs=1 , required=True )
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args = parser.parse_args()
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# read mesh_mask
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ncid = Dataset('mesh_mask.nc')
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lat2d = ncid.variables['gphit' ][ :,:].squeeze()
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lon2d = ncid.variables['glamt' ][ :,:].squeeze()
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msk = ncid.variables['tmaskutil'][0,:,:].squeeze()
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ncid.close()
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plt.figure(figsize=np.array([210,210]) / 25.4)
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# read psi.nc
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ncid = Dataset(args.f[0])
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var2d = ncid.variables[args.v[0]][-1,:,:].squeeze()
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var2dm = ma.masked_where(msk==0.0,var2d)
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# convert in Sv
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var2dm = var2dm / 1e6
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ncid.close()
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# define colorbar
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vlevel=np.arange(0.00,0.36,0.02)
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pcol = plt.contourf(lon2d,lat2d,var2dm,levels=vlevel)
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plt.clf()
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# plot contour
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ax = plt.subplot(1, 1, 1)
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ax.contour(lon2d,lat2d,var2dm,levels=vlevel)
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ax.grid()
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ax.set_title('PSI ISOMIP (Sv)')
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ax.set_ylabel('Latitude',fontsize=14)
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ax.set_xlabel('Longitude',fontsize=14)
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# plot colorbar
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plt.subplots_adjust(left=0.1,right=0.89, bottom=0.1, top=0.89, wspace=0.1, hspace=0.1)
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cax = plt.axes([0.91, 0.1, 0.02, 0.79])
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cbar= plt.colorbar(pcol, ticks=vlevel, cax=cax)
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cbar.ax.tick_params(labelsize=14)
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# save figure
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plt.savefig('psi.png', format='png', dpi=300)
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plt.show()
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